| 摘要 |
<p>The compounds of formula <IMAGE> wherein Z is a splittable ether group, R1 and R2 independently are ethyl and n-propyl radicals, in racemic form having the relative configuration 4aR*, 5aS* or an optically active form having the absolute configuration 4S, 5aR, are useful as intermedients for the preparation of pharmaceuticals.</p> |
